Back on the thread myself.
Great to see a new addition to the thread, welcome M.U.G.E.N
Nice to see that you have almost mastered the game. Like Stefl said, you should try to beat the Inward Chaos scenario. Those enemies will give you hell, and Chaos itself it's the hardest enemy in the game. It's 120 version of Inward Chaos is much tougher than the 150 version on Blackjack Colosseum.
Current PC Build
CPU - i7 8700K 3.7 GHz (4.7 GHz turbo) 6 cores OC'd to 5.2 GHz with Watercooling (Hydro Series H110i) | MB - Gigabyte Z370 HD3P ATX | Gigabyte GTX 1080ti Gaming OC BLACK 11G (1657 MHz Boost Core / 11010 MHz Memory) | RAM - Corsair DIMM 32GB DDR4, 2400 MHz | PSU - Corsair CX650M (80+ Bronze) 650W | Audio - Asus Essence STX II 7.1 | Monitor - Samsung U28E590D 4K UHD, Freesync, 1 ms, 60 Hz, 28"